fix: Clear a stale _inputRange when Plotly.react or a whole axis object sets a new range

draftlogs/8144_fix.md

@@ -0,0 +1 @@
+ - Fix `Plotly.react` and `Plotly.relayout` with a whole axis object ignoring a new range on an axis with `constrain: 'domain'` [[#8144](https://github.com/plotly/plotly.js/pull/8144)]

src/plot_api/plot_api.js

@@ -2112,6 +2112,12 @@ function _relayout(gd, aobj) {
             if (!newType || newType === '-') newType = 'linear';
             Registry.getComponentMethod('annotations', 'convertCoords')(gd, fullProp, newType, doextra);
             Registry.getComponentMethod('images', 'convertCoords')(gd, fullProp, newType, doextra);
+
+            // a range or autorange in a whole axis object is handled like the dotted keys above
+            if (!ptrunk && fullProp && vi && (vi.range !== undefined || vi.autorange !== undefined)) {
+                recordAlteredAxis(`${pleaf}.range`);
+                fullProp._inputRange = null;
+            }
         }
 
         // alter gd.layout
@@ -2872,6 +2878,17 @@ function diffLayout(gd, oldFullLayout, newFullLayout, immutable, transition) {
             // because it's likely that if the newDomain and oldDomain are the same, the user
             // passed in the same layout object and we should keep the _inputDomain.
         }
+
+        // Same for _inputRange: constraints compare the range against it, so a stale one
+        // puts the previous range back
+        const newRange = newFullLayout[key].range;
+        const oldRange = oldFullLayout[key].range;
+        const oldInputRange = oldFullLayout[key]._inputRange;
+        if (oldInputRange && newRange && oldRange) {
+            const isInputRange = newRange[0] === oldInputRange[0] && newRange[1] === oldInputRange[1];
+            const isOldRange = newRange[0] === oldRange[0] && newRange[1] === oldRange[1];
+            if (!isInputRange && !isOldRange) newFullLayout[key]._inputRange = null;
+        }
     }
 
     var diffOpts = {

test/jasmine/tests/axes_test.js

@@ -1884,6 +1884,61 @@ describe('Test axes', function() {
             .then(done, done.fail);
         });
 
+        describe('a new range on a constrain:domain axis', () => {
+            const data = () => [{ x: [0, 20, 50, 80, 100], y: [0, 20, 50, 80, 100] }];
+            const layout = (xRange) => ({
+                width: 400,
+                height: 400,
+                margin: { l: 0, r: 0, t: 0, b: 0 },
+                xaxis: { range: xRange, constrain: 'domain' },
+                yaxis: { range: [0, 100], scaleanchor: 'x', scaleratio: 1 }
+            });
+
+            it('is applied by Plotly.react', (done) => {
+                Plotly.newPlot(gd, data(), layout([0, 100]))
+                    .then(() => Plotly.react(gd, data(), layout([20, 80])))
+                    .then(() => {
+                        assertRangeDomain('xaxis', [20, 80], [0, 1], [0.2, 0.8]);
+                        expect(gd._fullLayout.xaxis._inputRange).toEqual([20, 80]);
+                    })
+                    .then(done, done.fail);
+            });
+
+            it('is applied by Plotly.relayout with a whole axis object', (done) => {
+                Plotly.newPlot(gd, data(), layout([0, 100]))
+                    .then(() => Plotly.relayout(gd, { xaxis: layout([20, 80]).xaxis, yaxis: layout().yaxis }))
+                    .then(() => {
+                        assertRangeDomain('xaxis', [20, 80], [0, 1], [0.2, 0.8]);
+                        expect(gd._fullLayout.xaxis._inputRange).toEqual([20, 80]);
+                    })
+                    .then(done, done.fail);
+            });
+
+            [
+                ['dotted keys', { 'xaxis.range': [20, 80] }],
+                ['a whole axis object', { xaxis: layout([20, 80]).xaxis }]
+            ].forEach(([name, update]) => {
+                it(`lets the other axis rescale when Plotly.relayout sets one range with ${name}`, (done) => {
+                    Plotly.newPlot(gd, data(), layout([0, 100]))
+                        .then(() => Plotly.relayout(gd, update))
+                        .then(() => {
+                            assertRangeDomain('xaxis', [20, 80], [0, 1], [0, 1]);
+                            assertRangeDomain('yaxis', [20, 80], [0, 1], [0, 1]);
+                        })
+                        .then(done, done.fail);
+                });
+            });
+
+            it('keeps the drawn range when Plotly.react gets the same layout again', (done) => {
+                Plotly.newPlot(gd, data(), layout([20, 80]))
+                    .then(() => Plotly.react(gd, gd.data, gd.layout))
+                    .then(() => {
+                        assertRangeDomain('xaxis', [20, 80], [0, 1], [0.2, 0.8]);
+                    })
+                    .then(done, done.fail);
+            });
+        });
+
         it('can change per-axis constrain:domain/range and constraintoward', function(done) {
             Plotly.newPlot(gd,
                 // start with a heatmap as it has no padding so calculations are easy